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Adibbi
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3 years ago

CPU1 not found on 5CSEBA2U23C6N (should be dual core)

Hi, our Cyclone V - 5CSEBA2U23C6N fails to de-assert the second cpu core from reset. During boot Linux reports the message "CPU1: failed to come online". Software on the SD card is generated by Yoc...
Adibbi's avatar
Adibbi
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3 years ago

I'm using the "kirkstone" branch. Uboot-socfpga version is 2022.01, kernel is linux-socfpga 5.15.30-lts.

The custom board dts file includes the official "socfpga_cyclone5.dtsi" and only defines external peripherals like i2c, serial, ethernet, etc...

I also verified at runtime(through /proc interface) that the device tree correctly describes the sysmgr node as you said. The only difference I've noticed is that the compatible string contains only "altr,sys-mgr", "syscon" and doesn't include "altr,sys-mgr-15.0".